package com.spirng.leetcode.day06;

public class Test100 {
    public boolean isSameTree(TreeNode p, TreeNode q) {
       if(p!=null&&q==null){
           return false;
       }
       else if(p==null&&q!=null){
           return false;
       }
        else if(p==null&&q==null){
            return true;
        }
        else if(p.val!=q.val){
           return false;
       }
       boolean a=isSameTree(p.left,q.left);
       boolean b=isSameTree(p.right,q.right);
       return a&&b;
    }
}
